Fig trees may benefit climate by turning carbon dioxide into stone

image via New Scientist

July 6, 2025, 12:01 AM

• •Some fig trees can convert carbon dioxide into stone, ensuring that the carbon remains in the soil long after the tree has died.
• •The researchers are still working on calculating how much carbon the trees are storing, water needs and how resilient they are in different climates.

Fig trees, like some other trees, have the remarkable ability to convert carbon dioxide into stone, specifically calcium carbonate. This process allows the carbon to be stored in the soil for an extended period, potentially benefiting the climate. Researchers have discovered that several fig tree species in Kenya exhibit this capability. Further studies are underway to determine the exact carbon storage capacity, water needs, and climate resilience of these trees, suggesting their potential role in future reforestation efforts as both a food source and a carbon sink.

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